UL 60079-7
Explosive Atmospheres – Part 7: Equipment Protection by Increased Safety ''e''
standard by Underwriters Laboratories, 02/24/2017
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UL 62841-2-9
Electric Motor-Operated Hand-Held Tools, Transportable Tools and Lawn and Garden Machinery – Safety – Part 2-9: Particular Requirements for Hand-Held Tappers and Threaders
standard by Underwriters Laboratories, 02/26/2016
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